c# - Excel Interop: Creating instance with Task.Run results in exception System.EntryPointNotFoundException -


here minimal example producing problem:

using system.runtime.interopservices; using system.threading.tasks; using excel = microsoft.office.interop.excel;  class program {     static void main(string[] args)     {         task.run(() =>         {             excel.application app = new excel.application();              if (app != null)             {                 app.quit();                 marshal.finalreleasecomobject(app);                 app = null;             }         });     } }

this results in following exception:

enter image description here

the last part in japanese says "eventsetinformation" of dll advapi32.dll entry point cannot found. i'm having difficulty understanding going on. why exception being thrown , trying tell me?

the exception in example produced vs 2013 on windows 7. in case, call eventsetinformation not resolved function not found in advapi32.dll. then, tested same code visual studio 2015 ctp , ran completion without exceptions. led me believe version conflict.

also, according here , msdn, eventsetinformation added advapi32.dll in windows 8. why not found when ran code vs 2013. therefore, run code snippet, needed newer version of advapi32.dll included later visual studio versions (or windows 8).

update

according https://github.com/dotnet/coreclr/issues/974

note os group has assured win7 patched include api (within months), exception not happen @ point

so, advapi32.dll on windows 7 updated include eventsetinformation time in future.


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